maintenance

one or more actions carried out to keep a product in a condition where it is able to fulfil its intended purpose;

Also defined in

Regulation (EU) 2024/3110 of the European Parliament and of the Council of 27 November 2024 laying down harmonised… 32024R3110, Article 3, point (24)
an action carried out to keep a product in a condition where it is able to function as specified
Council Regulation (EEC) No 3922/91 of 16 December 1991 on the harmonization of technical requirements and… 31991R3922, Article 2(1), point (f)
all inspections, servicing, modification and repair throughout the life of an aircraft needed to ensure that the aircraft remains in compliance with the type certification and offers a high level of safety in all circumstances; this shall include in particular modifications imposed by the…
Regulation (EU) 2024/573 of the European Parliament and of the Council of 7 February 2024 on fluorinated greenhouse… 02024R0573-20240220, Article 3, point (18)
(18) ‘maintenance or servicing’ means all activities, excluding recovery in accordance with Article 8 and leak checks in accordance with Article 4 and Article 10(1), first subparagraph, point (b), that entail opening the circuits or other subparts containing or designed to contain fluorinated…